/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.pulsar.broker.loadbalance.extensions.channel;


import java.util.Objects;

/**
 * Defines data for the service unit state changes.
 * This data will be broadcast in ServiceUnitStateChannel.
 */

public record ServiceUnitStateData(ServiceUnitState state, String broker, String sourceBroker, long timestamp) {

    public ServiceUnitStateData {
        Objects.requireNonNull(state);
        Objects.requireNonNull(broker);
    }

    public ServiceUnitStateData(ServiceUnitState state, String broker, String sourceBroker) {
        this(state, broker, sourceBroker, System.currentTimeMillis());
    }

    public ServiceUnitStateData(ServiceUnitState state, String broker) {
        this(state, broker, null, System.currentTimeMillis());
    }
}
